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K. F. .wmsm'om HAND SIGNAL LANTERN. APPLICATION FILED SPT.27,1916.

1,238,63 1 Patented July 17, 1917.

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UNITED sTATEs PATENT oEEioE.

KARL GUSTAF FBEDRIK WIKSTRM, 0F REBRO, SWEDEN, ASSIGNOB. T0 AKTIEBOLAGETCARL A. CARLESON, OF STOCKHOLM, SWEDEN.

HAND SIGNAL-LANTEEN.

Specification of Letters Patent.

Patented Jul;r 17, 1917.

Application filed September 27, 1916. Serial No. 122,346.

To all whom, t may concern:

Be it known that I, KARL GUSTAE FRED- Rin VnrsTRM, a subject of the Kingof Sweden, residing at rebro, in the Kingdom of Sweden, have invented anew and useful Improvement in Hand Signal-Lanterns, of which thefollowing is a specification.

The present invention relates to such hand signal lanterns, which areprovided with differently colored disks of glass or the like secured toa common shaft, by the turning of which the disks may be alternatelyadjusted in front of the opening for the light, in order to give thedesired colored light signal. The main feature of the invention consistsin this that the adjustment into position of the colored glass disks iseffected by means of a switching mechanism arranged to be operated fromthe top handle, by means of which the lantern is carried, as well asfrom the side handle by which the lantern is ordinarily held whensignals are given. The advantage is hereby attained that it is alwayspossible to give a signal without loss of time, even when the lantern iscarried by the top handle, without it lbeing necessary, as hasheretofore been the case, to seize the lantern by the side handle thuscausing a waste of precious time. This possibility of rapid signaling isparticularly important when switching trains and cars in railroad yards.

In the accompanying drawing an embodiment of the invention isillustrated. Figure 1 shows a signal lantern according to the inventionviewed from the side and partly in section, and Fig. 2 shows the samefrom the rear, the cover for the disk-adjusting mechanism having beenremoved. Fig.. 3 shows an edge view and Fig. 4 a side view of aA disksecured to the shaft of the vcolored glass disks, and Fig. 5 shows aside View of a pinion actuating the said disk.

The lantern 1 is provided in the usual manner with a carrying or tophandle 2, a side handle 3, and a reflector 4, covered by a lass pane. Atthe inside opening of the reector there are two disks 5 o f transparent,di'erently colored material, for instance red and green glass, securedto a common shaft 6 and located in the same lane. These disks lare soplaced on the shaft that the light is changed for every one .thlfl #11H1Of @he Shaft, for instance from red to green and to white, this lattercolor when none of the disks cover the light opening in the reflector sothat the light from the lamp inside the lantern radiates directlythrough the opening. In order to effect this one third turn of the shaftfrom the outside, the shaft lis extended through the rear wall of thelantern, where a disk 7 is secured to the same', which disk is providedwith three projecting lugs or studs 8 on its outside surface (Figs. 3and 4) at the same distance from the shaft and spaced at 120O from eachother. Outside of this disk 7 a pinion 9 is loosely mounted on the shaftand is provided on its inside with a springy projection 10 (shown inFig. 5 as an annular spring). When turning the pinion 9 in one directionthis projection 10 will engage one of the studs 8 and force the disk 7to turn with the pinion, while when the pinion is turning in theopposite direction the springy projection 10 will be pressed aside bythe studs 8, so that the disk 7 is not actuated but remains stationary.

rack 11 engages the pinion 9 and extends upward to the top handle 2where it is pivotally connected at its upper end to a piece 12 pivotedto the handle 2. To this piece 12 a' bar 13 is pivoted which passesthrough the hollow top handle 2 vand is provided at its other end with abutton 14, which may be easily reached with the thumb of the handholding the lantern. Owing to this arrangement, when pressing the button14 the rack 11 will be moved downward and turn the pinion 9, which thenactuates the disk 7 by means of its springy projection 10 so that thisdisk 7 with the shaft 6 and the colored glass disks 5 also becometurned. The shaft 6 turns one third of a revolution for each completedownward movement of the rack 11. When the pressure on the button isremoved, the rack 11 resumes its previous position actuated by a spring15 secured at one end to the wall of the lantern and at its other end tothe rack 11 in such manner that it becomes stretched when the rack 11 ispressed downward. The downward movement of the rack 11 may also beeffected from the side handle 3 by pressing with the thumb on a lug 16on the rack above` the handle 3. The disk 7 and the shaft 6 are securedin certain positions corresponding to the various positions of thecolored disks 5 in frontof the light openmoved downward this connectionis disengaged hy a lug 19 on the rack engaginga projection 20 on thesprin 26 of the stud 17 thus pressing the spring ackvvard and the stud17 out of engagement with the disk 7,

.c so that the disk may turn with the pinion 9. When the lug 19 haspassed the projection 20 the stud 17 will again -be pressed against thedisk 7 and will slide on the same until itv snaps into the next hole 18,when the krack 11 has reached the limitl of its downward movement. Whenthe rack 11 is retracted by the spring 15 the lug 19 will again pressthe `projection backward so that the stud 17 moves out of the hole 18and the disk 7 isthen free to move with the pinion owing to the frictionagainst the same. In order to prevent this backward movement of the disk7 a spring 21 presses against the disk and in the' positions of rest ofthe disk 7 it enters with its rounded end into corresponding shallowrecesses 22 in the disk and secures the same against undue movement. Inorder to limit the rack to only the necessary movement for the partialrotation of the glass disks, suitable shouldersI or stops 23,` 24, 25may be provided at the handle and on the rack. In addition the pinion,as shownfin Fig. 5, may he provided with teeth on such part of thecircumference only as corresponds to the length of the stroke of therack.

I claim: i v 4 ll.` In a hand signal lantern provided with Copies ofthis patent may be obtained for secured to said rod, 4a tooth a tophandle and a side handle, the combilantern, a push button rod journaledin the.

top handle, a loell crank lever one .arm of Which is pivotally connectedto the push button rod, another rod journaled adjacent to the sidehandle and pivotally connectedv to the other arm of the bell cranklever, a

finger piece secured to said rod, a tooth rack on said second rod, apinion rotatably mounted on thesaid shaft and meshing with vsaid toothrack, and a ratchet device hetween said pinion and the shaft,substantially as. and for the purpose set forth.

2. In a hand signal lantern provided with a top handle and side handle,the combination of a rotatable shaft, glass disks secured to the saidshaft and adapted to he rotated opposite the light opening of thelantern, a push button rod journaled in the top handle, a bell cranklever one arm of which is pivotally connected to the push button rod, another rod journaled adjacent to the side handle and pivotally connectedto the other arm of the bell crank lever, a finger piece rack on saidsecond rod, a pinion rotatably mounted on the said shaft and meshingwith said tooth rack, a resilient pawl on said pinion, a disk secured tothe said shaft, and studs secured to said disk so as to be engaged bysaid pavvl at one, direction of rotation of the said pinion,substantially as and for the purpose set forth. KARL eUsnir FernuniWnis'rau.

ve cents each, by addressing the Commissioner of Patents, Washington, D.C.

